.col{display: flex;flex-direction: column;align-items: center;}
.row{display: flex;flex-direction: row;align-items: center;}
.root-nav{
  margin: 20px;
  a{
    text-decoration: none;
    color: gray;
    margin-right: 15px;
    cursor: pointer;
  }
  .active-nav{
    color: #ff7900;
  }
}
